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MainWindow.xaml.cs
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MainWindow.xaml.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Microsoft.Web.WebView2.Core;
namespace WPFSample
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
webView.NavigationStarting += EnsureHttps;
InitializeAsync();
}
async void InitializeAsync()
{
await webView.EnsureCoreWebView2Async(null);
webView.CoreWebView2.WebMessageReceived += UpdateAddressBar;
await webView.CoreWebView2.AddScriptToExecuteOnDocumentCreatedAsync("window.chrome.webview.postMessage(window.document.URL);");
await webView.CoreWebView2.AddScriptToExecuteOnDocumentCreatedAsync("window.chrome.webview.addEventListener(\'message\', event => alert(event.data));");
}
void UpdateAddressBar(object sender, CoreWebView2WebMessageReceivedEventArgs args)
{
String uri = args.TryGetWebMessageAsString();
addressBar.Text = uri;
webView.CoreWebView2.PostWebMessageAsString(uri);
}
void EnsureHttps(object sender, CoreWebView2NavigationStartingEventArgs args)
{
String uri = args.Uri;
if (!uri.StartsWith("https://"))
{
webView.CoreWebView2.ExecuteScriptAsync($"alert('{uri} is not safe, try an https link')");
args.Cancel = true;
}
}
private void ButtonGo_Click(object sender, RoutedEventArgs e)
{
if (webView != null && webView.CoreWebView2 != null)
{
webView.CoreWebView2.Navigate(addressBar.Text);
}
}
}
}